/Engine/Plugins/Runtime/RigVM/Source/RigVMDeveloper/Public/RigVMModel/RigVMLink.h
Returns a string representation of the Link, for example: "NodeA.Color.R -> NodeB.Translation.X" note: can be split again using SplitPinPathRepresentation
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category=RigVMLink) [FString](API\Runtime\Core\Containers\FString) GetPinPathRepresentation() const